They usually have later Megillah readings for women who couldn’t make it to the regular one. The later ones are usually not that late either, so make sure you find out the times before-hand so you can make it.
Please be aware that the later ones don’t usually have a minyan, so it is better, if possible, to go to the regular one. But if it’s too hard for you, don’t stress out over it – there are many women who go to the later ones, and you are certainly yotzei (fulfill your obligation).